Shown in the Figure is the complete pump performance chart for a 3×4-10 centrifugal pump at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head of 50 ft. (3) What is the power required for the selected impeller? _________ A. 5 hp B. 4.2 hp C. 2.2 hp D. 3.2 hp
Shown in the Figure is the complete pump performance chart for a 3×4-10 centrifugal pump at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head of 50 ft. (3) What is the power required for the selected impeller? _________ A. 5 hp B. 4.2 hp C. 2.2 hp D. 3.2 hp
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Shown in the Figure is the complete pump performance chart for a 3×4-10 centrifugal pump at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head of 50 ft.
(3) What is the power required for the selected impeller? _________
A. 5 hp
B. 4.2 hp
C. 2.2 hp
D. 3.2 hp
Transcribed Image Text:Shown in the Figure is the complete pump performance chart for a 3x4-10 centrifugal pump
at 1750 rpm. The centrifugal pump must deliver at least 200 gal/min of water at the total head
of 50 ft.
(3) What is the power required for the selected impeller?
Impeller diameter
10 in
43
35
NPSH, (m)
30
25
Total head (m)
3
Total head (ft)
15
10
MN-C
NPSH, (10)
110
100
90
80
70-8 in
60
89
9 in.
50
406 in
30
20
0
7 in
0
0
A 5 hp
O B. 4.2 hp
O C.2.2 hp
D.3.2 hp
43
53
200
-61
1.5 HP.
400
65 69
Impeller 6 in.
71 72-73-73.9
600
53
3 HP
-2 HP
10
0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425
10.0
7.5
5.0
2.5
7 in
5 HP
800
Capacity (L/min)
1000
8 in
73
72
1200
+63
71
7.5 HP
25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425
Capacity (gal/min)
-9 in-
3x4-10
1750 RPM
1400
69
10 HP
-10 in
1600
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